I continue my 1010 pen plotter build by dry run testing the action of a connected servo and got unexpected results. I wired the servo as per the Blackbox manual and set it off to the side to observe it's action. (My custom 3D print pen holder is in still a work in progress ) I fly RC planes so I am very familiar, and I have lots of different servos to experiment with. The issue I ran in to is the servo arm did not move in proper relationship to the test plot. That object to plot is a single 5 sided closed polygon made and converted to gcode in Inkscape. When I run the 1010 job, starting from a set 0,0 point in the lower left corner, the servo arm does not change position as the 1010 travels to a start point on the polygon object. From there the servo arm still does not move as the 1010 plots the object and returns to the starting point of the object. But then the servo arm moves to a new position when it travels back to 0,0 to end the run. Let's call that move "pen up" for now. The problem is, the servo arm move from 0,0 to the starting point of the object is different "pen down" than the return to 0,0 - pen up. I was expecting the servo command to equate to "pen up" the moment Backbox powers up, and stay at "pen up" until it reaches the starting point of the object to plot. Instead, the only time the servo arm moved - pen up - was on the return to 0,0 - then it goes back to its "pen down" position at the end. I tried other servos and got the same result. As per the manual I installed 2 axis 1010 + servo firmware. Set $31 to 255 in settings, and manually typed in "M3 S255" in Control's gcode editor.